Yep most of the above, 4 strokes a few years back were unhead of and engines used to be 1.20 strokes, now there 1.60 2 and 4 stroke engine. Fuselages have got a lot wider, basically stretching the plane in all directions other than going over the 2 meter limit.

Personally i like the new big wide fuselage style, diddnt like the thin ones now i think both on the ground and in the air most modern patterns look better than the core aerobatic types, Yak, Cap etc etc